Engineering Materials
The material in which the atoms are arranged chaotically, is called

Amorphous material
Crystalline material
Mesomorphous material
None of these

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Engineering Materials
Chromium in steel

Gives ductility, toughness, tensile strength and anti-corrosion properties
Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties
Improves wear resistance, cutting ability and toughness
Improves cutting ability and reduces hardenability

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